21313516

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40063}}^1$

素因数の和:40093

約数の個数: 24

約数和(自身を含む): 44871680

約数和(自身を除く): 23558164

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40063, 80126, 160252, 280441, 560882, 761197, 1121764, 1522394, 3044788, 5328379, 10656758, 21313516]

約数ペア:

[(1, 21313516), (2, 10656758), (4, 5328379), (7, 3044788), (14, 1522394), (19, 1121764), (28, 761197), (38, 560882), (76, 280441), (133, 160252), (266, 80126), (532, 40063)]